Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pul removal of obsolete architecture ports from Arnd Bergmann:
 "This removes the entire architecture code for blackfin, cris, frv,
  m32r, metag, mn10300, score, and tile, including the associated device
  drivers.

  I have been working with the (former) maintainers for each one to
  ensure that my interpretation was right and the code is definitely
  unused in mainline kernels. Many had fond memories of working on the
  respective ports to start with and getting them included in upstream,
  but also saw no point in keeping the port alive without any users.

  In the end, it seems that while the eight architectures are extremely
  different, they all suffered the same fate: There was one company in
  charge of an SoC line, a CPU microarchitecture and a software
  ecosystem, which was more costly than licensing newer off-the-shelf
  CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
  seems that all the SoC product lines are still around, but have not
  used the custom CPU architectures for several years at this point. In
  contrast, CPU instruction sets that remain popular and have actively
  maintained kernel ports tend to all be used across multiple licensees.

  [ See the new nds32 port merged in the previous commit for the next
    generation of "one company in charge of an SoC line, a CPU
    microarchitecture and a software ecosystem"   - Linus ]

  The removal came out of a discussion that is now documented at
  https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
  marking any ports as deprecated but remove them all at once after I
  made sure that they are all unused. Some architectures (notably tile,
  mn10300, and blackfin) are still being shipped in products with old
  kernels, but those products will never be updated to newer kernel
  releases.

  After this series, we still have a few architectures without mainline
  gcc support:

   - unicore32 and hexagon both have very outdated gcc releases, but the
     maintainers promised to work on providing something newer. At least
     in case of hexagon, this will only be llvm, not gcc.

   - openrisc, risc-v and nds32 are still in the process of finishing
     their support or getting it added to mainline gcc in the first
     place. They all have patched gcc-7.3 ports that work to some
     degree, but complete upstream support won't happen before gcc-8.1.
     Csky posted their first kernel patch set last week, their situation
     will be similar

  [ Palmer Dabbelt points out that RISC-V support is in mainline gcc
    since gcc-7, although gcc-7.3.0 is the recommended minimum  - Linus ]"

This really says it all:

 2498 files changed, 95 insertions(+), 467668 deletions(-)

* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
  MAINTAINERS: UNICORE32: Change email account
  staging: iio: remove iio-trig-bfin-timer driver
  tty: hvc: remove tile driver
  tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
  serial: remove tile uart driver
  serial: remove m32r_sio driver
  serial: remove blackfin drivers
  serial: remove cris/etrax uart drivers
  usb: Remove Blackfin references in USB support
  usb: isp1362: remove blackfin arch glue
  usb: musb: remove blackfin port
  usb: host: remove tilegx platform glue
  pwm: remove pwm-bfin driver
  i2c: remove bfin-twi driver
  spi: remove blackfin related host drivers
  watchdog: remove bfin_wdt driver
  can: remove bfin_can driver
  mmc: remove bfin_sdh driver
  input: misc: remove blackfin rotary driver
  input: keyboard: remove bf54x driver
  ...

1 files changed, 0 insertions, 150 deletions

diff --git a/drivers/tty/serial/m32r_sio_reg.h b/drivers/tty/serial/m32r_sio_reg.h
deleted file mode 100644
index 6eed48828f94..000000000000
--- a/drivers/tty/serial/m32r_sio_reg.h
+++ /dev/null
@@ -1,150 +0,0 @@
-// SPDX-License-Identifier: GPL-1.0+
-/*
- * m32r_sio_reg.h
- *
- * Copyright (C) 1992, 1994 by Theodore Ts'o.
- * Copyright (C) 2004  Hirokazu Takata <takata at linux-m32r.org>
- *
- * These are the UART port assignments, expressed as offsets from the base
- * register.  These assignments should hold for any serial port based on
- * a 8250, 16450, or 16550(A).
- */
-
-#ifndef _M32R_SIO_REG_H
-#define _M32R_SIO_REG_H
-
-
-#ifdef CONFIG_SERIAL_M32R_PLDSIO
-
-#define SIOCR		0x000
-#define SIOMOD0		0x002
-#define SIOMOD1		0x004
-#define SIOSTS		0x006
-#define SIOTRCR		0x008
-#define SIOBAUR		0x00a
-// #define SIORBAUR	0x018
-#define SIOTXB		0x00c
-#define SIORXB		0x00e
-
-#define UART_RX		((unsigned long) PLD_ESIO0RXB)
-				/* In:  Receive buffer (DLAB=0) */
-#define UART_TX		((unsigned long) PLD_ESIO0TXB)
-				/* Out: Transmit buffer (DLAB=0) */
-#define UART_DLL	0	/* Out: Divisor Latch Low (DLAB=1) */
-#define UART_TRG	0	/* (LCR=BF) FCTR bit 7 selects Rx or Tx
-				 * In: Fifo count
-				 * Out: Fifo custom trigger levels
-				 * XR16C85x only */
-
-#define UART_DLM	0	/* Out: Divisor Latch High (DLAB=1) */
-#define UART_IER	((unsigned long) PLD_ESIO0INTCR)
-				/* Out: Interrupt Enable Register */
-#define UART_FCTR	0	/* (LCR=BF) Feature Control Register
-				 * XR16C85x only */
-
-#define UART_IIR	0	/* In:  Interrupt ID Register */
-#define UART_FCR	0	/* Out: FIFO Control Register */
-#define UART_EFR	0	/* I/O: Extended Features Register */
-				/* (DLAB=1, 16C660 only) */
-
-#define UART_LCR	0	/* Out: Line Control Register */
-#define UART_MCR	0	/* Out: Modem Control Register */
-#define UART_LSR	((unsigned long) PLD_ESIO0STS)
-				/* In:  Line Status Register */
-#define UART_MSR	0	/* In:  Modem Status Register */
-#define UART_SCR	0	/* I/O: Scratch Register */
-#define UART_EMSR	0	/* (LCR=BF) Extended Mode Select Register
-				 * FCTR bit 6 selects SCR or EMSR
-				 * XR16c85x only */
-
-#else /* not CONFIG_SERIAL_M32R_PLDSIO */
-
-#define SIOCR		0x000
-#define SIOMOD0		0x004
-#define SIOMOD1		0x008
-#define SIOSTS		0x00c
-#define SIOTRCR		0x010
-#define SIOBAUR		0x014
-#define SIORBAUR	0x018
-#define SIOTXB		0x01c
-#define SIORXB		0x020
-
-#define UART_RX		M32R_SIO0_RXB_PORTL	/* In:  Receive buffer (DLAB=0) */
-#define UART_TX		M32R_SIO0_TXB_PORTL	/* Out: Transmit buffer (DLAB=0) */
-#define UART_DLL	0	/* Out: Divisor Latch Low (DLAB=1) */
-#define UART_TRG	0	/* (LCR=BF) FCTR bit 7 selects Rx or Tx
-				 * In: Fifo count
-				 * Out: Fifo custom trigger levels
-				 * XR16C85x only */
-
-#define UART_DLM	0	/* Out: Divisor Latch High (DLAB=1) */
-#define UART_IER	M32R_SIO0_TRCR_PORTL	/* Out: Interrupt Enable Register */
-#define UART_FCTR	0	/* (LCR=BF) Feature Control Register
-				 * XR16C85x only */
-
-#define UART_IIR	0	/* In:  Interrupt ID Register */
-#define UART_FCR	0	/* Out: FIFO Control Register */
-#define UART_EFR	0	/* I/O: Extended Features Register */
-				/* (DLAB=1, 16C660 only) */
-
-#define UART_LCR	0	/* Out: Line Control Register */
-#define UART_MCR	0	/* Out: Modem Control Register */
-#define UART_LSR	M32R_SIO0_STS_PORTL	/* In:  Line Status Register */
-#define UART_MSR	0	/* In:  Modem Status Register */
-#define UART_SCR	0	/* I/O: Scratch Register */
-#define UART_EMSR	0	/* (LCR=BF) Extended Mode Select Register
-				 * FCTR bit 6 selects SCR or EMSR
-				 * XR16c85x only */
-
-#endif /* CONFIG_SERIAL_M32R_PLDSIO */
-
-#define UART_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
-
-/*
- * These are the definitions for the Line Control Register
- *
- * Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
- * UART_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
- */
-#define UART_LCR_DLAB	0x80	/* Divisor latch access bit */
-#define UART_LCR_SBC	0x40	/* Set break control */
-#define UART_LCR_SPAR	0x20	/* Stick parity (?) */
-#define UART_LCR_EPAR	0x10	/* Even parity select */
-#define UART_LCR_PARITY	0x08	/* Parity Enable */
-#define UART_LCR_STOP	0x04	/* Stop bits: 0=1 stop bit, 1= 2 stop bits */
-#define UART_LCR_WLEN5  0x00	/* Wordlength: 5 bits */
-#define UART_LCR_WLEN6  0x01	/* Wordlength: 6 bits */
-#define UART_LCR_WLEN7  0x02	/* Wordlength: 7 bits */
-#define UART_LCR_WLEN8  0x03	/* Wordlength: 8 bits */
-
-/*
- * These are the definitions for the Line Status Register
- */
-#define UART_LSR_TEMT	0x02	/* Transmitter empty */
-#define UART_LSR_THRE	0x01	/* Transmit-hold-register empty */
-#define UART_LSR_BI	0x00	/* Break interrupt indicator */
-#define UART_LSR_FE	0x80	/* Frame error indicator */
-#define UART_LSR_PE	0x40	/* Parity error indicator */
-#define UART_LSR_OE	0x20	/* Overrun error indicator */
-#define UART_LSR_DR	0x04	/* Receiver data ready */
-
-/*
- * These are the definitions for the Interrupt Identification Register
- */
-#define UART_IIR_NO_INT	0x01	/* No interrupts pending */
-#define UART_IIR_ID	0x06	/* Mask for the interrupt ID */
-
-#define UART_IIR_MSI	0x00	/* Modem status interrupt */
-#define UART_IIR_THRI	0x02	/* Transmitter holding register empty */
-#define UART_IIR_RDI	0x04	/* Receiver data interrupt */
-#define UART_IIR_RLSI	0x06	/* Receiver line status interrupt */
-
-/*
- * These are the definitions for the Interrupt Enable Register
- */
-#define UART_IER_MSI	0x00	/* Enable Modem status interrupt */
-#define UART_IER_RLSI	0x08	/* Enable receiver line status interrupt */
-#define UART_IER_THRI	0x03	/* Enable Transmitter holding register int. */
-#define UART_IER_RDI	0x04	/* Enable receiver data interrupt */
-
-#endif /* _M32R_SIO_REG_H */